60ed54e00856f0e66f459d3154fea883f0718dbf
9
Commits
| Author | SHA1 | Message | Date | |
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 arcattackandClaude Fable 5
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24ea7f13af |
HUD ironing (task #38): authentic Lock producer + simple-X mode
- LOCK rules transcribed from the exported HudSimulation (part_013.c:5619-5634): lock requires a target AND your own HUD host zone damage < 0.75 (_DAT_004b7ec4 -- a shot-up targeting computer drops lock) AND the targeted zone damage < 1.0 (_DAT_004b7ec8; whole-mech target checks zone 0 -- a wreck's dead zone can't re-lock). Box and ring are now separate signals like the binary: gBTHudLockState 1 = target held (hotbox draws), 2 = LOCKED (+ the spinning ring). - SIMPLE-X mode: the ctor's [0x99] minimal-reticle list transcribed (@4689-4705: green +-0.02..0.08 cross on the aim translate); Draw switches master <-> simple X on the PrimaryHudOn element bit (0x20), completing the recovered Execute's state-list logic. - Canopy diagnosis sharpened (open-questions): blx_cop is the torso segment's inside-skeleton mesh enclosing the eye; the black box = the skeleton render branch missing its texture + PUNCH cutout (the canopy windows are punch texels). A rendering-branch task; stays hidden by default. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
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18d49491b7 |
Reticle Execute @004cdcf0 RECOVERED: every HUD instrument now live (task #37)
The one un-exported gap in the reticle chain, read via capstone (tools/disas2.py; the annotated disasm preserved at reference/decomp/reticle_execute_004cdcf0.disasm.txt). Draw() is now a transcription of the real per-frame logic, and the HUD attr-table names (hud.hpp ids 4/5/6/8/A/B/C/D) are CONFIRMED by their Execute usage: - Range ladder: BAR from ladder-top to the caret + caret translate. - The bottom 21-tick tape is the TORSO-TWIST indicator (NOT heading): deflection = -/+(span/2) x (RotationOfTorsoHorizontal / twist limit), attrs 4/5/6. Fixed-torso BLH reads centred -- authentic static. - The circle-with-stem is the COMPASS (attr 0xD, rad->deg rotation) at (botX, botY - 3*tickMajor - 0.03), with the THREAT trail (attr 0xC) in its rotated frame: 0.05-unit attack-direction marks, fresh < 2s red, expiring at 6s. Port feed: player TakeDamage pushes the impact direction (dormant vs the passive test dummy). - Pips (composed into subB6): hidden when destroyed (attr 1 == 1), LIT when the fire cycle is LOADED (attr 0x1c == 2; port source rechargeLevel >= 1) else the dark charging ring; filtered by the weapon-GROUP bits (weaponMode & elementMask&0xF). Range plays NO part (the stored TargetWithinRange slots are never read by Execute). - Lock ring: subB9 at frame centre SPINNING 4 deg/frame while locked ([0x9d] is the spin matrix, not a heading list). - Target HOTBOX: a rectangle hugging the projected extents (x+-4 around the top-centre hotbox point, +1/-11.5 vertical; baked K=2.8145 -- the port projects through the live per-axis projection), switching to the edge arrows past +-1.6 or behind (BTProjectHotBox, L4VIDEO). - Reticle state Off/On + PrimaryHudOn full-HUD/simple-X switch, aim translate on slew move, 3D marker + PNAME player-name mesh identified (chain still deferred). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
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d78bde066d |
Authentic target acquisition LIVE: reticle slew + pick-ray lock + aimed zone damage (task #36)
The engine Reticle model (MUNGA/RETICLE.h [T0]) reconstructed end to end: - Mech::targetReticle is a real Reticle member bound to the TargetReticle attribute (0x1d), per the RP VTV analog (VTV.h targetReticle). - Crosshair slew: mouse -> client rect -> reticle coords (the pod stick free-aim channel's dev-box stand-in); BT_AIM="x y" pins it headless. LMB fires lasers / RMB missiles (alongside SPACE/CTRL). - Pick ray: the ACTIVE eye publishes pos + LookAtRH basis (BTSetAimCamera, L4VIDRND view-write site) + the render loop publishes proj._22; BTGetAimRay builds the world ray, Mech::PickRayHit slab-tests it against the collision template's ExtentBox via the engine's BoundingBox::HitBy (local frame; clips the Line at entry) -> world hull point. - Designation: the mech under the crosshair designates (sticky; re-hover refreshes; cleared when the target leaves the roster at burial); the entity target slots 0x37c/0x388/0x38c feed the whole weapon path. - Aimed fire: while HOT the impact point is the PICKED hull point -> the STEP-6 cylinder lookup resolves the zone under the crosshair (verified: center-aim -> head-band zone 13 dominant). Off-crosshair the sticky designation converges on center mass. - HUD: the aim group draws at the slewed position ([0x9a] translate, contained by push/pop); the designator ring tracks the target's projected point (subB9 hot / subB8 designated, BTProjectToReticle); edge arrows when off-screen/behind. - AUTHENTIC gating: no fire arc exists in the binary (FireWeapon fires whenever HasActiveTarget, part_013.c:7758) -> BT_FIRE_ARC is now an explicit OPT-IN presentation clamp; the hardwired gEnemyMech lock and the projectile path's gEnemyMech fallback are removed. - Fixed en route: every renderable rebuild stomped mCamera back to the chase eye (start-inside silently lost the cockpit camera; the aim feed exposed it). BTL4VideoRenderer::mViewInside persists the chosen view. Verified headless: BT_AIM="0 0" -> HOT lock, pick hits the hull face at exact range, aimed zones resolve; BT_AIM="0.8 0.3" -> no lock, zero damage, zero missile launches; kill chain completes to wreck + smoke. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
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48b17750e5 |
HUD reticle + weapon pips LIVE: dpl2d 2D display-list port (task #35)
- dpl2d API fully recovered from the binary recorders (@487f34-488630): opcode model (points/lines/polyline/circle/color/width/matrix/push-pop), CallList = INLINE include (state persists to caller), centered coordinate frame (unit = half viewport height). game/reconstructed/dpl2d.cpp rework. - BTReticleRenderable ctor @004cc40c transcribed with the authentic calibration (originX .35, originY .25, scaleY .5, 0..1200m right range ladder, bottom heading tape, FUN_004cd938 tick ladders, lock rings, turn arrows); range caret slides from the live target range fed by the mech4 targeting step (BTSetHudTargetRange). - Weapon pips: the binary gate is IsDerivedFrom(0x511830 = MechWeapon::ClassDerivations) [T1: part_014.c:5386 hard-aborts on missing weapon attrs; part_012 counts + roster ORs capabilityFlags@+0x334] so ALL 7 BLH weapons register (3 lasers + 2 PPCs + 2 MissileLaunchers). Pip A (lit, authored PipColor) on TargetWithinRange, else dark ring B. - AddWeapon @004cdac0 store map corrected to the verified order (part_014.c:4827-4837); both state attrs are literally named "SimulationState" (strings @51d526/51d577) -> weapon simulationState. - Mech roster this[0x1ef] renamed poweredSubsystems -> weaponRoster (0x511830 is MechWeapon, not PoweredSubsystem=0x50f4bc); derivation-tag table added to context/decomp-reference.md. - Draw hook BTDrawReticle after the 3D scene, cockpit view only. Binary Execute @004cdcf0 is an un-exported gap -> Draw dynamics [T3], tracked in context/open-questions.md with the blx_cop canopy + PNAME pip meshes. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
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56f02b2176 |
Cockpit view live: V toggle, camera gate, real EyepointRotation, inside skeleton
- V toggles the authentic cockpit eyepoint <-> the chase camera. Both eyes coexist; DPLEyeRenderable::Execute now writes the VIEW only when it IS mCamera (unconditional writes let the last-executed eye stomp the toggle). - EyepointRotation is a real zeroed EulerAngles member on Mech (was bound to the shared junk attrPad -- the eye composes this attribute into the view EVERY frame, so the cockpit camera was rotated by garbage: the canted horizon, then the black screen). The eye-slew systems write it later. - The cockpit eye mounts at the eyepoint's REST position with a clean upright forward basis on the tree root (the live joint chain fed it the site tilt + torso pose; authentic pitch/yaw is the deferred gyro eye chain). - The inside view swaps the player to the INSIDE skeleton mesh set (SkeletonType_A): 19 body segments hide, exactly one mesh remains -- blx_cop.bgf, the authentic cockpit canopy shell around the eyepoint. It currently renders as a black enclosure (the black-screen report), so it is HIDDEN pending its interior/punch-material rendering (BT_INSIDE_COCKPIT=1 shows it for that work). Damage gstates respected in both directions; RemakeEntity keys off the DISPLAYED skeleton. - Dev: BT_START_INSIDE=1 starts in the cockpit view. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
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5236d4263a |
Wreck sink (quadratic burial) + ldbr debris field -- the 1996 script completed
Answers "does the wreck fade away?": YES, by sinking. FUN_00456410 (the 1996 sink renderable) computes offsetY = rate * t^2; the hulk's authored rate is -0.025 -> the ~7-unit hulk is fully underground ~17s after the kill. The script also pairs the standing hulk with the LDBR strewn-debris field (12x13u flat scatter), parented together and sinking together. Also verified from the mesh data: BLHDBR (1537 verts -- more than the intact torso) IS the authored Blackhawk wreck: the classic standing-leg-in-rubble sculpt. The "just a leg standing there" report is the authentic art. (THRDBR -- the mesh the 1996 script hardcoded -- parses to ZERO vertices; more evidence the hardcode was an unfinished dev shortcut.) Implementation: SwapToWreck adds the ldbr piece; TickWreck applies the quadratic sink per frame (driven from the dead mech's UpdateDeathState), hides both pieces at burial and reports it so the wreck-smoke re-arm stops with the wreck. DPLStaticChildRenderable::SetOffsetTranslation added (Execute re-reads OrientationMatrix per frame -- same in-place idiom as SetDrawObj). Lifecycle verified live: kill -> 'blhdbr.bgf' + ldbr debris -> smoke re-arm @10s -> wreck buried @~17s -> smoke stops. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Fable 5
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c0fa6bf21a |
Death = the burning WRECK-HULK swap (effect 104) -- the authentic chain, reconstructed
The user was right: a dead mech turns into a pile of wreckage. The authentic
1995 chain, recovered end-to-end:
kill -> the victim's per-mech DEATH ModelList ('blhdead'/'lokdead'/'owndead'/
'thrdead', .RES ids 22-25) -> its authored effects: 104 (the WRECK script) +
1007 (dnboom big explosion) + 1001 (ddthsmk rubble smoke plume) + a damage-
smoke burst (3/4/5/15).
Effect 104 = ExplosionScripts case 4 (part_008.c:2663, LIVE in the 1996 binary;
the "disabled" warning is case 6): loads the destroyed hulk + flamesml/flamebig
flame meshes with sweep flicker. Every mech ships its hulk (BLHDBR/MADDBR/
LOKDBR/... + GENDBR generic); the 1996 script hardcoded thrdbr.bgf (dev
shortcut) -- we use the victim's own.
Reconstructed as BTL4VideoRenderer::SwapToWreck: hide every segment mesh, hang
"<prefix>dbr.bgf" on the tree root (pending-swap if death precedes tree build);
routed from the engine's ExplosionClassID dispatch (effect 104 ->
BTSwapMechToWreck(explosion->GetEntityHit())). The kill now fires the
authentic 'blhdead' resource (manual 7+1 pfx calls removed -- the list carries
1007/1001 itself). Verified live:
[death] firing authentic death list 'blhdead' id=22
** effect_number = 104
[BTrender] wreck swap: victim -> 'blhdbr.bgf'
Follow-ups noted: mesh flames + hulk settle (cosmetic), DeathSplash.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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arcattackandClaude Fable 5
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a3d67cc639 |
Combat visible + killable: Wword root-cause fix, .PFX effect layer, RemakeEntity swap
The 'can't kill the enemy / no visible damage' cluster, root-caused and fixed faithfully: - STEP-6 unaimed path was INERT: the cylinder table was 'cached' at Wword(0x111) -- the recon ABSORBER bank (stores nothing, reads 0) -- so every unaimed hit silently no-op'd. Promoted to the named member Mech::damageLookupTable (binary this[0x111], was mislabeled ammoExpended). New gotcha class recorded (reconstruction-gotchas §2) + sweep; 2 dead multiplayer branches logged. - Fire path migrated off the stale vital-zone aim onto the completed STEP-6 unaimed dispatch (zone=-1 + beam entry point -> cylinder resolves the exterior zone). No more invisible 1-shot kills; death via the authentic cascade (~14 center-mass hits). Wreck stays TARGETED on kill (beams stop on it); scoring latches off. - SendSubsystemDamage AV fixed: unbound critical-subsystem plug guard (43 unbound plugs/mech logged as an open question -- the binding itself is a gap). - RemakeEntity (render damage swap): the 1996 render state machine's missing Remake state, reconstructed as an in-place SetDrawObj mesh swap keyed by each segment's damage-zone graphic state (tree dtor doesn't cascade -> never rebuild). Destroyed arms/guns visibly wreck (the only variants the RES registers). - BT .PFX particle layer (L4VIDEO.cpp): the 1995 explosion/damage effect layer, unported since 2007 (DPLIndependantEffect/ReadPSFX/ExplosionScripts all stubs). Parses the authentic VIDEO/*.PFX definitions via the [pfx_day] psfxN mapping; premultiplied blending renders BOTH families from the same data (additive-style fire + occluding smoke -- DDAM2 is 30% grey, DDTHSMK ramps negative: impossible additively); depth-sorted billboards with a radial-masked grit sprite; impact-frame orientation (.PFX offsets are authored mech-local, -Z = out of the struck armor toward the shooter) for weapon hits AND damage bands (via lastInflictingID, now maintained -- was declared but never written). Both effect-number encodings route (raw dpl <100 + WinTesla 1000+slot carried by the band resources). Death fires the authentic dnboom (7) + ddthsmk smoke plume (1). - Effects anchor at the impact point / damaged zone's segment, not the mech origin (no more fire at the feet). - Dev force-input gates BT_AUTOFIRE / BT_AUTODRIVE for headless fire-chain verification; BT_PFX_ADD=1 flips the particle blend for A/B. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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arcattackandClaude Opus 4.8
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7b7d465e5e |
Initial commit: bt411 -- standalone Windows BattleTech (Tesla 4.10 port)
Clean, self-contained extraction of the BattleTech-specific work from the
reverse-engineering workspace -- engine + game + content + build, with nothing
from Red Planet or the raw archive dumps. Builds green (Win32) and runs the
single-player drive->animate->target->fire->damage->destroy loop out of the box.
Layout:
engine/ MUNGA + MUNGA_L4 shared 2007 engine, carrying our BT render/loader
work (bgfload/L4D3D/L4VIDEO: BSL bit-slice decode, LOD/ground/shadow
models) + image codec; the minimal rp/ headers the audio HAL needs
game/ reconstructed BT logic + surviving-original BT source + fwd shims
+ WinMain launcher
content/ full runtime tree (BTL4.RES, VIDEO/, GAUGE/, AUDIO/, eggs, BTDPL.INI)
docs/ format specs + reconstruction ledgers
reference/ raw Ghidra pseudocode (recon source-of-truth) + decomp exporter
tools/ MP console emulator + map/resource scanners
One top-level CMake builds munga_engine lib + bt410_l4 game lib + btl4.exe.
All paths relativized (186 fwd shims + ~437 CMake abs paths -> repo-relative);
DXSDK is the one external, overridable via -DDXSDK. Verified: builds to a
byte-identical 2.27MB exe and runs combat (TARGET DESTROYED, 0 crashes) against
the bundled content.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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